Helical Gear for Float Zone Crystal Grower
High-precision helical gear utilized in float zone crystal growers for producing pure monocrystalline semiconductor boules from polycrystalline rods. Essential for precise speed control in the zone melting process of equipment under 8483.60.80. Meets statistical note for wafer manufacturing crystal growers.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for manually operated semiconductor equipment
Parts of hand-operated gearing classify differently from power transmission elements.
If part of complete speed changer assembly
Fully assembled gear boxes for semiconductor use fall under complete speed changers heading.
If for furnace rotation in crystal growth
Some crystal growth transmission parts may classify with industrial furnaces.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide certification linking the gear to float zone equipment models used in silicon/gallium arsenide processing
• Label shipments clearly as 'semiconductor crystal grower parts' and include HTS hierarchy reference
Related Products under HTS 8483.90.80.10
Index Gear for Wafer Grinder Spindle
Multi-station indexing gear rotating wafer spindles through grinding, etching, and cleaning cycles in semiconductor wafer processing equipment.
Anti-Backlash Gear for Crystal Puller Lift
Zero-backlash precision gear eliminating play in vertical lift mechanism of semiconductor crystal pullers, ensuring constant growth speed.
Flexible Gear Coupling for Wafer Lapper Drive
Flexible gear coupling compensating for thermal expansion in high-speed wafer lapper drive trains, maintaining alignment during operation.
Timing Belt Pulley for Wafer Slicing Saw
Specialized timing pulley that drives the high-speed diamond blade in wafer slicing saws, which cut thin semiconductor wafers from monocrystalline boules. Critical transmission component for precise wafer thickness control in equipment of 8483.60.80.
Chain Sprocket for Wafer Polishing Equipment
Industrial chain sprocket driving the polishing pad carrier in double-side wafer polishers, achieving mirror-finish surfaces for semiconductor device fabrication. Essential transmission element per statistical note (a)(ii)(C).
Camshaft for Semiconductor Wafer Indexer
Custom camshaft controlling precise wafer indexing and rotation in automated semiconductor processing equipment under 8483.60.80. Ensures exact positioning for grinding/polishing operations.